ref: e5f0918bebd66beb83dfa6fa1b9b21d1fa17f53b dir: /sys/src/cmd/bzip2/lib/unix.h/
#include <stdio.h> #include <stdlib.h> #include <string.h> #include <signal.h> #include <math.h> #include <errno.h> #include <ctype.h>